John Hay, 12th Earl of Erroll (died 30 December 1704) was a Scottish nobleman and Lord High Constable of Scotland.
[4] Hay's wife was Lady Anne Drummond (b. January 1656) and their marriage contract was dated 1 October 1674.
[5] The couple had five children: three sons, Charles, James and Thomas; and two daughters, Mary and Margaret.
[4] Papers of William II give an indication of the extensive lands owned by the Earl of Erroll in October 1700.
Charles, 13th Earl, took his Parliamentary seat at the end of June 1705 but was a prisoner in Edinburgh Castle from 1708; he died aged 40 years on 16 October 1717.